Background: Selective antibody deficiency with normal immunoglobulins (SADNI) may be identified as part of distinct primary or secondary immunodeficiency disorders. The clinical manifestations include recurrent, often severe or prolonged, upper or lower respiratory tract infections. Objectives: To evaluate SADNI in patients with recurrent sinopulmonary infections and its relation to IgG subclas...

Coincidence of autoimmune diseases such as immune thrombocytopenic purpura (ITP) with immunodeficiencies has been reported previously in patients who suffered from primary antibody deficiency (PAD). But there is no original study on immunological profiles of ITP patients to find out their probable immune deficiency. In this case-control study, ITP patients' humoral immunity was investigated for...

iron deficiency can cause cognitive and functional learning disorders in children. some studies have reported a relationship between low serum ferritin levels in patients with anemia and helicobacter pylori (h. pylori) infection. therefore, we aimed to determine the relationship between these two common diseases. this descriptive analytical cross-sectional study was performed to assess serum fe...

Purpose. To find out if the serum IgG level in the newborn baby was affected by low maternal serum IgG during pregnancy in two newly diagnosed primary antibody deficient patients. Method. Infant cord blood IgG level was compared with maternal IgG level in 2 mothers with newly diagnosed primary antibody deficiency, who declined replacement IgG treatment during pregnancy. Results. Both mothers de...

specific antibody deficiency lias been recognized as an immunodeficiency. in order to investigate an antipolysaccliaride antibody defect as a cause of rcccttrent infections, 30 children were studied. patients who had been identified to have a major immunodeficiency or structural abnormality or a disease known to cause infection were excluded. tliirty patints, aged i to 13.8 years (mean age, 5.8...

BACKGROUND A subset of patients with chronic rhinosinusitis (CRS) has refractory disease. The risk factors for refractory CRS include atopy, a disrupted mucociliary transport system, medical conditions affecting the sinonasal tract mucosa, and immunodeficiency. METHODS We review four primary immunodeficiencies reported in individuals with CRS: common variable immune deficiency (CVID), selecti...

recurrent ear, nose, and throat (ent) infections are common presenting symptoms in patients with primary antibody deficiencies , but sometimes they remain undiagnosed for many years and are subjected to different antibiotics because of a lack of experience in immunodeficiencies. in order to determin the frequency of ent symptoms among the patients with antibody deficiencies, 83 antibody deficie...

BACKGROUND Primary antibody deficiency, the most common primary immunodeficiency disorder, represents a heterogeneous spectrum of conditions caused by a defect in any critical stage of B cell development and is characterized by impaired production of normal amounts of antigen-specific antibodies. OBJECTIVE This retrospective study aimed at description and analysis of demographic, clinical, im...